Tie plate for metal railroad ties



J. PIRA.

TIE PLATE FOR METAL RAILROAD TIES.

APPLICATION FILED NOV.29| I921.

Paten'ted Feb. 7, 1922.

UNITED STATES PATENT OFF! JE N rm, or ot remmzfunen, BELGIULL' 7 Hanna F03 mn'ran na rno n Tins.

To all whom-itmayconcern." I

Be it known that I,'JEAN P1RA, 2t subject of the King'of'Belgium, residing at 10 Quai Vercourt, Ougree-lez-Liege, Belgium, have invented certain new and useful Improvements in Tie Plates for'Metal Railroad Ties, (for which I have filed'a plications in Bel-- gium on Oct. 22, 1921; ermany on April 17, 1919; France on Oct. 25, 1921; Great Britain on Nov. 7 1921,) of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to railroad ties and the like, and consists in an improved supporting tie-plate intended for securing the rails to unperforated metal ties, the upper face of the latter having lateral edges projecting on both sides.

According to the present invention, the supporting tie-plate is provided on both sides with hooks engaging the projecting edges of the tie and is secured for example by a key driven between its hooks and the lateral projections before mentioned. In this way the rail is secured in a simple manner but at the same time also with absolute effectiveness against lifting. It is then easy to provide known means for preventing slid- CC and DD of Figure 5.

ing of the tie plate and of the rail in the longitndinal direction of the tie. p

The annexed drawing represents one form of construction in accordance with the invention: 1

Figure 1 is a side view of the attachment of the rail to a tie, in section upon the line AAA of Figure 2.

Figure 2 is a plan of the same. Figure 3 is a longitudinal section upon the line BB of Figure 2. c

Figure 4c is a top plan of the tie. Figure 5 is a plan of the tie-plate. Figures 6 and 7 are sections upon the lines The supporting tie-plate a is provided at 7' its two edges ly1ng in a direction parallel to b and c, engaging around above stated The securing the tie'with hooks the edges which pro ect as from thetwo sides of the tie.

of the rail is effected as usual by means of the hook d, the washer-plate g resting against a rib e, and the bolt h. The hooks b and 0 are arranged at such a distance from one another that the tie-plate a can be laid or dropped vertically upon the tie Z; having the lateral projections k. The vertical fixing ofthe tie-plate a is insured by a key m Specification of Letters Patent. 7

en aged between the flange b ofthe-tie-plate V V Patented Feb.e,,f19'22 Application filed November 29, 1921. semi No 518,584.

ant the lower face of the flange is upon the Itie Z. Key m is slightly tapered in a vertical plane, as indicated in Fig 3, so that when driven into position it will have a wed-ging action between flange b and the lower face of flange It. 7 1

To prevent longitudinal'sliding of the tie plate a alongthe tie Z, the latter is formed with a T-shaped depression obtained by stamping or in any other suitablemanner. Within the portion iof the depression, perpendicular to the longitudinal axis of the tie, there is fitted a corresponding rib 7' upon the tie-plate a. The portion a of the hollow in the tie, situated in the longitudinal axis of the latter, serves to receive the head of the bolt h securing the rail f upon the tieplate a. The projection j is obtained either by stamping or by rolling during the manufacture or preparation of the tie-plate. An elongated rectangular hole 0 is provided in the tie plate to receive'the bolt h, as in the ordinary practice.

It will readily be observed that the vertical fixing of the rail upon the tie, obtained by means of'the tie-plate described above, is very simple and that in combination with the currently employed or other known means for preventing horizontal slidin of accessories is reduced to the strict minimum.

Claims: p 1. A tie-plate for metal railroad ties, com

prising a base, means for securing the rails thereto, parallel hooked flanges a ng edges of said base at right angles to the rail, said flanges engaging upper longitudinal edges of the tie, and means for fixing said flanges'to the tie.

2; In combination with a metal railroad tie, having lateral projections along the upper longitudinal edges, a tie-plate compris- 1H0 hobked flanges along two edges of said base, said flanges being parallel and spaced apart to pass clear of said projections, and means for securing said flanges to said projections. 3. In combination with an unperforated metal railroad tie having lateral undercut projections along its upper longitudinal edges, a tie-plate comprising a base adapted round projections at the along its upper longitudinal edges, a tieplate comprising a base, adapted to seat 7 upon said tie, parallel flanges upon said base, said flanges adapted to hook around said projections, means for securing said flanges to said projections, -a hook upon the upper. face of said base, said hook engaging the bottom of the rail, and a bolt passing through said base, said bolt enga ing the bottom of the base and having its ead lo- 7 catedr-in, a depression on the upper face of the tie. a r v 5. The, combination with a railroad rail, of a metal tie, said tie having lateral projections along its upper longitudinal edges and a T-shaped' depression in its upper face, and of a tie-plate comprising a base adapted to seat upon said tie, a rib upon said base entering one portion of said T-shaped depression, parallel flanges engaging around said projections, means for securingfsaid flanges to said projections, and of means for fastening the rail to said tie plate, said fastening means including a bolt passing through said base and having its head located in the other portion of the depression in said tie. V In testimony'whereof I hereunto afiix my signature.

' JEAN PIRA.

Witnesses:

OSCAR OTONY, r CURTIS T. EVERETT. 

